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Internet Caching - How it Can Affect Web Design

By Freeola Support on 20th December, 2017 | 3 Comment(s)

Welcome to the Freeola customer support pages. This guide is designed to help with problems relating to website changes not taking affect immediately. and delays with new websites appearing online after DNS or hosting service changes. For more help topics, please visit our main Support Page.

 

Sometimes when creating or making changes to a website, you may find that changes do not take effect immediately. This can often be caused by Internet caching, whereby some data has been stored (cached) to increase loading times or prevent repeat requests. When you then make a change, if this stored data is still being referred back to, you may still see an unchanged website until the stored data expires.

When managing websites, there are two main types of Internet caching that you may come into contact with. These are as follows:

Browser Caching

Where information is saved within your web browser to reduce page loading times.


DNS Caching

Where a server IP address (location) is stored by your ISP for up to 24hrs.

More information relating to both of these types Internet caching can be found below.

 

Browser Caching

 

When you visit a webpage in your web browser (Internet Explorer, Firefox, Safari etc.), it will often save a copy of files relating to the page, so that if you return it doesn't need to load the page again.

If you have made a change to a webpage and are still seeing an old version on that page when you revisit it, in most browsers, pressing Ctrl + F5 on the keyboard will cause the cached to be cleared for that page, and the page to be loaded anew.

Sometimes your browser may cache a redirect that has since changed, a page which you may not access directly, or other data that can not be cleared just by pressing Ctrl + F5. In the first instance, if you restart your browser, this will often clear the outdated cache.

If you are still seeing outdated information, you may need to clear the entire cache in your browser. The process for doing this varies depending on your browser and version. Common browsers are listed below with the process for clearing the cache.

 
Chrome

 

  1. Click the menu icon in the top right. Depending on the version of Chrome in use, this could be a spanner icon or three horizontal lines.

  2. Select History from the menu.

  3. On the page that displays click the "Clear all browsing data..." button.

  4. A popup should then appear. On this popup you should set it to "Obliterate the following items from: the beginning of time". If you then ensure that only "Empty the cache" is ticked and press Clear browsing data, the browser cache should be cleared.


Firefox

  1. Click the orange Firefox button in the top left, put the mouse over History, then select Clear Recent History from the additional menu.

  2. Set the Time range to clear to Everything and ensure that only Cache is ticked.

  3. If you click Clear Now, your browser cache will be cleared.


Internet Explorer 7

  1. Click Tools on the toolbar and select "Delete Browsing History..." from the menu.

  2. Click "Delete files..." from beside Temporary Internet Files.

  3. If you click Yes to confirm, your browser cache will be cleared.


Internet Explorer 8

  1. Click Tools on the toolbar and select "Internet Options" from the menu.

  2. Under the Browsing History heading, click "Delete....".

  3. If you ensure that only Temporary Internet files is ticked and click Delete, your cache will be cleared.


Internet Explorer 9 or 10

  1. Click the gear icon in the top right and select Internet Options from the menu.

  2. Under the Browsing History heading, click "Delete...".

  3. If you ensure that only Temporary Internet files is ticked and click Delete, your cache will be cleared.


Opera

  1. Click the Opera icon in the top left, mouse over Settings and select Delete Private Data.

  2. Click Detailed Options and ensure that only "Delete entire cache" is ticked.

  3. If you click Delete, your cache will be cleared.

 

Safari on Mac OSX

  1. Click Safari on the finder bar at the top of the screen and select "Empty Cache..." from the menu.

  2. If you click Empty, your cache will be cleared.

 
DNS Caching

 

If you change the web hosting service that you are using for your website, you may be affected by DNS caching. This is where the address of the web server is stored with your DNS provider for up to 24hrs following you visiting your website. If the address of the web server changes during these 24hrs, any visitors using the same DNS provider will still be redirected to the old web server until the cached record expires up 24hrs later.

So for example, if you move your website hosting from the VIP Web Hosting to the InstantPro website builder, it can take up to 24hrs before you are able to view your InstantPro site online if anyone using the same DNS provider (including yourself) has viewed your website in the last 24hrs.

The possible solutions for this are as follows:

 
Allow up to 24hrs to be able to view your website online.

 

This is the recommended course of action as it does not involve any internal changes on your machine and just involves allowing some time. Often you find that changes take affect within a few hours.

 

Temporarily change your DNS provider.

 

If you are in a hurry to view your website live on the Internet, you may wish to consider manually changing the DNS provider on your PC. This is fairly easy to do, and to reverse later on. For more information please see the knowledge base guide for Changing Your DNS Servers.

 

Alter the host records on your machine.

 

This is not recommended unless you are confident making the necessary changes. Due to potential complications, and possible problems this could cause, this will not be explained here and is advised against.


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Article Comments (3)
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Hmmm... commented on 18th December, 2012:
It's also worth noting you can use 'CTRL + F5'.

F5 will refresh the page but (depending on browser) can still use cached data.
CTRL+F5 should force all data to be refreshed.

Hmmm...
Avatar
dean5 [staff] commented on 20th December, 2012:
Thanks for pointing this out Hmmm..., I've updated the guide now to say Ctrl+F5 rather then just F5.
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codetoils commented on 13th June, 2016:
The information that you have provided for chrome and mozilla caching is very useful to me. This thing has to be taken care because it can affect website a lot as shown in the article above.

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